Hello Brenda I find that meds like Arimidex and Femara also add to the problem of chemo brain and exhaustion.
I work for a government department as a telephonist, I wear a headset, I found what I was hearing from the caller in the headset was not coming out in my typing! to such an extent I thought my cancer had spread to my brain so my GP sent me for a brain scan. Only then did my oncologist agree to change the Arimidex to Femara.
I am still so tired on the Femara I have to force myself to get up and do anything; but at least my memory isn't as bad as it was...
also excercising is great for lymphodema, stretching and walking especially - that is something else you have to force yourself to do! Walking especially gives you more energy and really helps to get your body's lymphatic system back into gear.
good luck to you and take care